San Francisco startup Grand Rounds is offering second opinions to cut down on unnecessary or inappropriate surgeries. It just announced a $55 million VC haul, to take its total to $106 million. Clients include Comcast, Costco and Jamba Juice. And two-thirds of the time, the company's reviews lead to changes in treatment or diagnosis. Unnecessary and inappropriate procedures are one reason the U.S. has one of the (if not the) most costly healthcare system in the world. Insurers have already begun fighting back against the overuse of spinal fusion surgeries, which are 14 times more likely to be carried out in a locality in Florida than one in Maine. Meanwhile, employers are supportive of measures like Grand Rounds because they save them money on healthcare expenditures. "One of the biggest knocks on this is no matter how much you communicate this, at the time the employee needs this, they may not remember that that service is available to them," said Shari Davidson, of the National Business Group on Health, a nonprofit alliance of big employers. But 60% of big employers plan to offer Grand Rounds or a similar service to employees in 2016. More